body,ul,p,h1,h2,h3,h4,dl,dd,form,input,textarea,select,ol,s{ padding:0; margin:0; font-family:"微软雅黑"; }
li { list-style:none;}
img { border:none; }
a { text-decoration:none;}
a:hover { text-decoration:none; }

.all{
    border: 1px solid #000;
}

.head{
    background-color: rgba(0, 0, 255, 0.5);
    text-align: center;
 }

 .head span{
     font-size: 20px;
     color: #fff;
 }

 .content{
    line-height: 50px;
    margin: 10px auto;
 }

.bottom input{
    font-size: 16px;
    margin-right: 120px;
    padding: 1px 5px;
    border-radius: 4px;
}